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2019-08-27Cleanup: Consistently use `Param` instead of `Arg` #62426Kevin Per-2/+2
2019-08-23Audit uses of `apply_mark` in built-in macrosVadim Petrochenkov-5/+8
Replace them with equivalents of `Span::{def_site,call_site}` from proc macro API. The new API is much less error prone and doesn't rely on macros having default transparency.
2019-08-17Remove gensyms from built-in derivesMatthew Jasper-86/+67
Also make them generally more hygienic with name resolution.
2019-08-15hygiene: `ExpnInfo` -> `ExpnData`Vadim Petrochenkov-4/+4
For naming consistency with everything else in this area
2019-08-15hygiene: Merge `ExpnInfo` and `InternalExpnData`Vadim Petrochenkov-4/+4
2019-08-15`Ident::with_empty_ctxt` -> `Ident::with_dummy_span`Vadim Petrochenkov-4/+4
`Ident` has had a full span rather than just a `SyntaxContext` for a long time now.
2019-08-15Remove `Spanned` from `{ast,hir}::FieldPat`Vadim Petrochenkov-9/+7
2019-08-14Rollup merge of #63543 - c410-f3r:variant, r=c410-f3rMazdak Farrokhzad-14/+14
Merge Variant and Variant_ Extracted from #63468.
2019-08-14Merge Variant and Variant_Caio-14/+14
2019-08-13Add NodeId for Arm, Field and FieldPatCaio-0/+1
2019-08-05Auto merge of #63248 - petrochenkov:nomarker, r=matthewjasperbors-7/+12
Move special treatment of `derive(Copy, PartialEq, Eq)` from expansion infrastructure to elsewhere As described in https://github.com/rust-lang/rust/pull/62086#issuecomment-515195477. Reminder: - `derive(PartialEq, Eq)` makes the type it applied to a "structural match" type, so constants of this type can be used in patterns (and const generics in the future). - `derive(Copy)` notifies other derives that the type it applied to implements `Copy`, so `derive(Clone)` can generate optimized code and other derives can generate code working with `packed` types and types with `rustc_layout_scalar_valid_range` attributes. First, the special behavior is now enabled after properly resolving the derives, rather than after textually comparing them with `"Copy"`, `"PartialEq"` and `"Eq"` in `fn add_derived_markers`. The markers are no longer kept as attributes in AST since derives cannot modify items and previously did it through hacks in the expansion infra. Instead, the markers are now kept in a "global context" available from all the necessary places, namely - resolver. For `derive(PartialEq, Eq)` the markers are created by the derive macros themselves and then consumed during HIR lowering to add the `#[structural_match]` attribute in HIR. This is still a hack, but now it's a hack local to two specific macros rather than affecting the whole expansion infra. Ideally we should find the way to put `#[structural_match]` on the impls rather than on the original item, and then consume it in `rustc_mir`, then no hacks in expansion and lowering will be required. (I'll make an issue about this for someone else to solve, after this PR lands.) The marker for `derive(Copy)` cannot be emitted by the `Copy` macro itself because we need to know it *before* the `Copy` macro is expanded for expanding other macros. So we have to do it in resolve and block expansion of any derives in a `derive(...)` container until we know for sure whether this container has `Copy` in it or not. Nasty stuff. r? @eddyb or @matthewjasper
2019-08-04Rename `ItemImplKind::Type` to `ItemImplKind::TyAlias`varkor-1/+2
2019-08-03Move special treatment of `derive(Copy, PartialEq, Eq)` from expansion ↵Vadim Petrochenkov-7/+12
infrastructure to elsewhere
2019-08-03Rollup merge of #63146 - Mark-Simulacrum:clean-attr, r=petrochenkovMazdak Farrokhzad-23/+9
Cleanup syntax::attr Mostly removing needless arguments to constructors r? @petrochenkov
2019-07-31Remove derives `Encodable`/`Decodable` and unstabilize attribute `#[bench]`Vadim Petrochenkov-34/+2
2019-07-31Replace AstBuilder with inherent methodsMark Rousskov-13/+0
2019-07-31Remove Span argument from ExtCtxt::attributeMark Rousskov-10/+9
MetaItem.span was always equivalent
2019-07-27Move proc macro server into libsyntaxVadim Petrochenkov-171/+1
2019-07-26Introduce built-in macros through libcoreVadim Petrochenkov-83/+3
2019-07-19Adjust other names after the `Mark` renamingVadim Petrochenkov-1/+1
2019-07-15normalize use of backticks in compiler messages for libsyntax_extSamy Kacimi-1/+1
https://github.com/rust-lang/rust/issues/60532
2019-07-07syntax: Pre-intern names of all built-in macrosVadim Petrochenkov-17/+17
They always end up interned anyway
2019-07-07syntax: Migrate built-in macros to the regular stability checkingVadim Petrochenkov-19/+19
2019-07-03Remove needless lifetimesJeremy Stucki-5/+5
2019-06-23Remove built-in derive macros `Send` and `Sync`Vadim Petrochenkov-10/+0
2019-06-23Fix meta-variable binding errors in macrosJulien Cretin-1/+1
The errors are either: - The meta-variable used in the right-hand side is not bound (or defined) in the left-hand side. - The meta-variable used in the right-hand side does not repeat with the same kleene operator as its binder in the left-hand side. Either it does not repeat enough, or it uses a different operator somewhere. This change should have no semantic impact.
2019-06-19Auto merge of #61172 - matthewjasper:cleanup-implied-bounds-lint, r=varkorbors-1/+0
Improve the explicit_outlives_requirements lint * Don't use Strings to compare parameters * Extend the lint to lifetime bounds * Extend the lint to enums and unions * Use the correct span for where clauses in tuple structs * Try to early-out where possible * Remove unnecessary bounds in rustc crates
2019-06-19Rollup merge of #61898 - petrochenkov:sekind, r=eddybMazdak Farrokhzad-19/+21
syntax: Factor out common fields from `SyntaxExtension` variants And some other related cleanups. Continuation of https://github.com/rust-lang/rust/pull/61606. This will also help to unblock https://github.com/rust-lang/rust/pull/61877.
2019-06-18Remove the HirId/NodeId from where clausesMatthew Jasper-1/+0
Also give them a span in the HIR
2019-06-18Run `rustfmt --file-lines ...` for changes from previous commits.Eduard-Mihai Burtescu-5/+6
2019-06-18rustc: remove 'x: 'y bounds (except from comments/strings).Eduard-Mihai Burtescu-1/+1
2019-06-18allow_internal_unstable: Avoid some more allocationsVadim Petrochenkov-16/+3
2019-06-18syntax: Factor out common fields from `SyntaxExtension` variantsVadim Petrochenkov-3/+18
2019-06-12Auto merge of #60669 - c410-f3r:attrs-fn, r=petrochenkovbors-1/+1
Allow attributes in formal function parameters Implements https://github.com/rust-lang/rust/issues/60406. This is my first contribution to the compiler and since this is a large and complex project, I am not fully aware of the consequences of the changes I have made. **TODO** - [x] Forbid some built-in attributes. - [x] Expand cfg/cfg_attr
2019-06-12Rollup merge of #61654 - Electron-libre:use_slice_patterns_in_rustc, ↵Mazdak Farrokhzad-10/+10
r=oli-obk,Centril use pattern matching for slices destructuring refs #61542 Use slices pattern where it seems to make sense .
2019-06-10syntax: Rename variants of `SyntaxExtension` for consistencyVadim Petrochenkov-1/+1
2019-06-10syntax: Use `MultiItemModifier` for built-in derivesVadim Petrochenkov-4/+20
2019-06-09Allow attributes in formal function parametersCaio-1/+1
2019-06-08use pattern matching for slices destructuringCedric-10/+10
2019-06-06syntax: Switch function parameter order in `TokenTree::token`Vadim Petrochenkov-1/+1
2019-06-06syntax: Use `Token` in `TokenTree::Token`Vadim Petrochenkov-1/+1
2019-06-06Always use token kinds through `token` module rather than `Token` typeVadim Petrochenkov-2/+2
2019-06-05Aggregation of drive-by cosmetic changes.Alexander Regueiro-2/+1
2019-06-03syntax: revert `ast::AsyncArgument` and associated changes.Eduard-Mihai Burtescu-1/+0
Here follows the main reverts applied in order to make this commit: Revert "Rollup merge of #60676 - davidtwco:issue-60674, r=cramertj" This reverts commit 45b09453dbf120cc23d889435aac3ed7d2ec8eb7, reversing changes made to f6df1f6c30b469cb9e65c5453a0efa03cbb6005e. Revert "Rollup merge of #60437 - davidtwco:issue-60236, r=nikomatsakis" This reverts commit 16939a50ea440e72cb6ecefdaabb988addb1ec0e, reversing changes made to 12bf98155249783583a91863c5dccf9e346f1226. Revert "Rollup merge of #59823 - davidtwco:issue-54716, r=cramertj" This reverts commit 62d1574876f5531bce1b267e62dff520d7adcbbb, reversing changes made to 4eff8526a789e0dfa8b97f7dec91b7b5c18e8544.
2019-05-27Pass symbols to `ExtCtxt::std_path` instead of strings.Nicholas Nethercote-24/+27
Because this function is hot. Also remove the dead `ty_option` function.
2019-05-27Avoid unnecessary internings.Nicholas Nethercote-21/+21
Most involving `Symbol::intern` on string literals.
2019-05-24Tweak macro parse errors when reaching EOF during macro call parseEsteban Küber-1/+1
- Add detail on origin of current parser when reaching EOF and stop saying "found <eof>" and point at the end of macro calls - Handle empty `cfg_attr` attribute - Reword empty `derive` attribute error
2019-05-22Eliminate unnecessary `Ident::with_empty_ctxt`sVadim Petrochenkov-1/+1
2019-05-22Simplify use of keyword symbolsVadim Petrochenkov-8/+9
2019-05-13Return a `Symbol` from `name_or_empty` functions.Nicholas Nethercote-2/+2
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